Read it through once

Twice more in the darkness the bell at the great gate sounded, and the irruption was repeated, and the grindstone whirled and spluttered. “What is it?” cried Lucie, affrighted. “Hush! The soldiers’ swords are sharpened there,” said Mr. Lorry. “The place is national property now, and used as a kind of armoury, my love.”